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What properties of water make it useful as a solvent? What types of compound can it (i) dissolve and (ii) hydrolyse? |
Answer» A high value of dielectric constants (78.39 C2/Nm2) and dipole moment make water a universal solvent. Water is able to dissolve most ionic and covalent compounds. Ionic compounds dissolve in water because of the ion-dipole interaction, whereas covalent compounds form hydrogen bonding and dissolve in water. Water can hydrolyze metallic and non-metallic oxides, hydrides, carbides, phosphides, nitrides and various other salts. During hydrolysis, `H^(+) and OH^(–)` ions of water interact with the reacting molecule. Some reactions are: `CaO+H_(2)O to Ca(OH)` `NaH+H_(2)O to NaOH+H_(2)` `CaC_(2)+H_(2)O to C_(2)H_(2)+Ca(OH)_(2)` |
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